Struts---Action 优化配置的方式（通配符配置，动态方法调用）

1.动态方法调用

①index.jsp

<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030">
<title>Insert title here</title>
</head>
<body>
<a href="dologin">login</a>
<a href="doexecute">execute</a>

</body>
</html>

②struts.xml

<?xml version="1.0" encoding="UTF-8" ?><!-- 版本，编码 -->
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd"><!-- 类型，地址 -->

<struts>
	<!-- 开发模式 -->
	<constant name="struts.devMode" value="true" />
	<constant name="struts.enable.DynamicMethodInvocation" value="true" />
	
	<!-- 功能模块，一般命名空间与其名字相同，根路径+功能模块与Action匹配 -->
	<package name="default" namespace="/" extends="struts-default">
		<!-- /helloWord method="execute" -->
		<action name="do*" class="struts.one.LoginAction" method="{1}">
			<!--绝对路径，根路径 -->
			<result name="login">/login.jsp</result>
			<result name="success">/success.jsp</result>
			<result name="error">/fail.jsp</result>
		</action>
		
	</package>

	<include file="example.xml" />

	<!-- Add packages here -->
</struts>

③LoginAction(根据do*,可匹配所有以do开头的Action)


public class LoginAction extends ActionSupport {
	
	private static final long serialVersionUID = 1L;

	public String login() {
		return LOGIN;
	}

	public String execute() {

		return SUCCESS;
	}

	public String add() {

		return ERROR;
	}

}

④输入地址http://localhost:8080/hellostrus/index.jsp，点击login会进入登录界面，在地址栏加！add会调用add方法

如图：

2.通配符配置

①index.jsp

<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030">
<title>Insert title here</title>
</head>
<body>

<a href="Teacher">teacher</a>
<a href="Student">student</a>

</body>
</html>

②struts.xml

<?xml version="1.0" encoding="UTF-8" ?><!-- 版本，编码 -->
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd"><!-- 类型，地址 -->

<struts>
	<!-- 开发模式 -->
	<constant name="struts.devMode" value="true" />
	<constant name="struts.enable.DynamicMethodInvocation" value="true" />
	
	<!-- 功能模块，一般命名空间与其名字相同，根路径+功能模块与Action匹配 -->
	<package name="default" namespace="/" extends="struts-default">
	
		<action name="*_*" class="struts.one.{1}Action" method="{2}">
			<result>/success.jsp</result>
			<result name="{2}_{1}_success">/{2}_{1}_success.jsp</result>
		
		</action>
	</package>

	<include file="example.xml" />

	<!-- Add packages here -->
</struts>

③建立StudentAction和TeacherAction

package struts.one;

import com.opensymphony.xwork2.ActionSupport;

public class StudentAction extends ActionSupport {

	public String add() {

		return "add_Student_success";
	}
	public String delete() {

		return "delete_Student_success";
	}

}

package struts.one;

import com.opensymphony.xwork2.ActionSupport;

public class TeacherAction extends ActionSupport {

	public String add() {

		return "add_Teacher_success";
	}
	public String delete() {

		return "delete_Teacher_success";
	}

}

④建立对应的jsp页面

//add_Student_success
<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030">
<title>Insert title here</title>
</head>
<body>
add_Student_success.jsp
</body>
</html>
//add_Teacher_success.jsp
<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030">
<title>Insert title here</title>
</head>
<body>
add_Teacher_success.jsp
</body>
</html>
//delete_Teacher_success.jsp
<%@ page language="java" contentType="text/html; charset=GB18030"
    pageEncoding="GB18030"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030">
<title>Insert title here</title>
</head>
<body>
delete_Teacher_success.jsp
</body>
</html>

⑤运行

输入地址http://localhost:8080/hellostrus/Teacher显示success,输入地址http://localhost:8080/hellostrus/Teacher_add进入登录成功界面

Struts---Action 优化配置的方式（通配符配置，动态方法调用）

1.动态方法调用

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